After watching the entire 11-part series, Oprah says she walked away with greater respect for our planet…and she thinks you will, too.

"You will fall in love with our planet," she says. "You won't drop another piece of trash. You will start turning out your lights. It will give you such respect for the home that we call planet Earth."

Oprah says the documentary gave her the same feeling that she's had only a few times in her life. "When you're out on the Great Plains and just as far as the eye can see there's nothing but sky and land … you have a sense that, yes, you are human," she says. "And, yes, you are on the Earth, but the Earth doesn't just belong to you. You really recognize that we share this planet with others."